/* The following code example is taken from the book
 * "The C++ Standard Library - A Tutorial and Reference, 2nd Edition"
 * by Nicolai M. Josuttis, Addison-Wesley, 2012
 *
 * (C) Copyright Nicolai M. Josuttis 2012.
 * Permission to copy, use, modify, sell and distribute this software
 * is granted provided this copyright notice appears in all copies.
 * This software is provided "as is" without express or implied
 * warranty, and with no claim as to its suitability for any purpose.
 */
#include <iostream>
#include <algorithm>
#include <functional>
#include <locale>
#include <string>

using namespace std;
using namespace std::placeholders;

char myToupper(char c) {
    std::locale loc;
    return std::use_facet < std::ctype < char > > (loc).toupper(c);
}

int main() {
    string s("Internationalization");
    string sub("Nation");

    // search substring case insensitive
    string::iterator pos;
    pos = search(s.begin(), s.end(),           // string to search in
                 sub.begin(), sub.end(),       // substring to search
                 bind(equal_to<char>(),       // compar. criterion
                      bind(myToupper, _1),
                      bind(myToupper, _2)));
    if (pos != s.end()) {
        cout << "\"" << sub << "\" is part of \"" << s << "\""
             << endl;
    }
}
